Do prokaryotes have a nucleus?

Prokaryotes do not contain an organized nucleus that holds all of their DNA. Instead, prokaryotes have DNA cells floating throughout their cytoplasm. Eukaryotes do contain an organized nucleus.

Prokaryotes are simple-celled organisms that are generally very tiny. They do not have organized organelles and are often classified as bacterial cells. Prokaryotes contain cell walls and photosynthetic pigments that allow them to obtain energy from the sun. Some prokaryotes also contain flagella in order to move, and pilli in order to adhere to other cells and tissues. These cells come in many different shapes, including cocci, baccilli and spirochetes. Prokaryotes are very small.